Juniper EX4300 Hardware Guide

NOTE: 32-port EX4300 switches does not support Power over Ethernet
(PoE).
Table 30: N+0 AC Power Calculations for 32-Port EX4300 Switches
Base Power
(in watts)
Backup
Power (in
watts)
System Power
Budget (in
watts)
Total Power (in
watts)
PSU
0
(W) +
PSU
1
(W)
Power Supply Rating
PSU
1
PSU
0
1640350350–350 W AC
1640665700350 W AC350 W AC
Table 31 on page 53 lists the N+0 power calculation for 48-port EX4300 switches that
use 350 W AC, 715 W AC, and 1100 W AC power supplies.
Table 31: N+0 AC Power Calculations for 48-Port EX4300 Switches
Ports
Enabled
for PoE+
Available
PoE Power
(in watts)
Base
Power (in
watts)
Backup
Power
(in
watts)
System
Power
Budget (in
watts)
Total Power
(in watts)
PSU
0
(W) +
PSU
1
(W)
Power Supply Rating
PSU
1
PSU
0
51751750350350–350 W AC
164901750665700350 W AC350 W AC
278181750993.51065715 W AC350 W AC
185401750715715–715 W AC
39118317501358.51430715 W AC715 W AC
4814401750170518151100 W AC715 W AC
30925175011001100–1100 W AC
4814401750209022001100 W AC1100 W AC
381165175013401450350 W AC1100 W AC
N+N Redundancy Configuration of AC Power Supplies
You can configure your switch for N+N redundancy, in which N power supplies can be
removed or fail and the remaining N power supplies continue to supply power to the
switch without interruption.
53Copyright © 2017, Juniper Networks, Inc.
Chapter 4: Power Supplies

Juniper EX4300 Specifications

General

Model	EX4300
Virtual Chassis	Yes, up to 10 members
Layer 3 Routing	Yes
10GBASE SFP+ Ports	4
Jumbo Frames	9216 bytes
MAC Address Table Size	32, 000
Operating System	Junos OS
Uplink Ports	4 x 10GBASE SFP+
Power Supply	AC or DC options
Operating Temperature	0°C to 45°C (32°F to 113°F)
Input Voltage	100-240V AC
Operating Relative Humidity	5 to 90% RH, non-condensing
Management Options	CLI, Web UI, Junos Space
Redundancy	Yes, power supply and fans
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Ports	24 or 48